James



(No Modem J. J. MGCARTHY.

ROOF.

No. 483,262. Patented Sept. 27, 1892.

me Nanms Farms cm rnorurnm wAsumswN, c.

UNITED STATES PATENT OFFICE.

JAMES J. MCCARTIIY, OF AUSTIN, ILLINOIS.

ROOF.

SPECIFICATION forming part of Letters Patent No. 483,262, dated September 2'?, 1892.

Application filed April l, 1892. Serial No. 427,407. (No model.)

To all whom it may concern.-

1 3e it lrnown'that I, .T AMES J. MoCAETHY,a c itlzen of the United States, residing at Austin, 1n the county of Cook and State of Illinois, have invented certain new and useful Improvements in Roofs, of which the following 1s a specification, reference being had to the accompanying drawings, in which- Figure 1 is a vertical cross-section of a carroof. Fig. 2 is an enlarged detail, being a section on line 2 2 of Fig. 3. Fig. 3 is an enlarged detail, being a vertical ci oss-section of a portion of a oar-root', showing a modification; and Fig. 4 is a side view of a portion of the ridge-pole.

My invention relates to roofs, and more particularly to metal roofs commonly used on freight-cars, and is in some respects an improvement on the car-roof shown in Letters Patent of the United States No. 248,905, dated November 1, 1881, granted to H. Aldridge.

The object of my invention is to improve and simplify the construction of roofs of this class, which object I accomplish as hereinafter specified, and as illustrated in the drawings.

That which I regard as new will be pointed out in the claims.

In the drawings, 1 indicates a car.

2 indicates the roof of the car, which consists of an outer wooden covering 3, under which is a covering formed of corrugated-iron sheets 4.` I prefer to use sheets of corrugated iron; but plain iron sheets may be used, if desired. The corrugated-iron sheets are held in positionby carlings 5, which extend transversely of the roof of the car, as best shown in Fig. 1. Each carling is composed of an under plate 6, which 'is in general dat, with upturned edges, and extends from the eaves of the car on one side across the car to the eaves on the opposite side. The plates 6 are each provided with upturned edges 7, as best shown in Fig. 2. The upper portion of each carling consists of a channelbar 8, which is inverted over the under plate G, as best shown in Fig. 2, the channel-bar being of sufficient width to tit properly between the upturned edges 7 of the under plate 6, as shown. The channel-bars 8 also extend from the eaves on one side ot the car t0 the eaves on the opposite side, as shown in Fig. 1. rlhe edges of the corrugated-iron plates are secured between the channel-bars 8 and plates 6, as best shown in Fig. 2. The plates G and channel-bars S are held together and to the root of the car by means of bolts or spikes 9, which pass through the channelbar 8 and plate G into longitudinal bars at the eaves of the car. The carlings are supported at the center upon a longitudinal bar 10, over which is a usual ridge-pole 11, as shown in Fig. 1, and an ordinary foot-board 12 is placed over the ridge-pole. I do not wish to limit myself to extending the under plates 6 and channel-bars 8 continuously across the car from one eaves to the other, as they may be divided centrally, if desired. I prefer,

however, to make them continuous, and when so constructed the form of ridge-pole above described is preferred. When, however, they are divided at the center, as suggested, instead of a ridge-pole constructed as described I prefer to use the following construction:

13 indicates a channel-bar, which extends longitudinally of the car, under the ridgepole, being supported by the usual cross-timbers 14, as best shown in Fig. 3.

15 indicates a T-shaped ridge-pole, the lower portion of which is adapted to fit into the channel-bar 13, as shown in Fig. 3. Suitable sockets 17 are provided in the sides of the ridge-pole 15, which receive the ends of the carlings and prevent them from moving out of place. A slot 1S is provided for receiving the edge of the plates 4. The ridgepole is rigidly secured to the channel-bar 13 by means of screws 16 or other suitable means. The parts are so arranged with relation to each other that the ridge-pole will hold the carlings firmly in position over the edges of the channel-bar 13. Oarlings similar to the carlings 5 are used, except that they do not extend continuously from one eaves of the car to the other.

By the arrangement of carlings and ridgepoles above described the construction of the roofs is much simplified and they may be manufactured much stronger than heretotore.

That which I claim as my invention, and dcsire to secure by Letters Patent, is

1. In a roof, the combination, with a plate 6, having upturned edges 7, of a channel-bar ICO 8, inverted over saidplate 6 and secured theretudinally-extending channel-bar 13 and a T- upon, and plates 4, having their edges se' shaped ridge-pole 15, the lower portion of cured between said plate 6 and channel-bar `which is adapted to t into said Channel-bar, I5 8, substantially as described. of carlings the ends of which are adapted to 5 2. In a roof, the eombinatiomwith a longiit between the lateral portions of the ridgetudinally-extendingehannel-bar13,ofa ridgepole and the edges of the channel-bar and pole 15, thelower portion of which is adapted means for securing said ridge-pole to said to fit into said Channel-bar, and carlings havchannel-bar', substantially as described.

ing their ends secured between said ridge- JAMES J. h/ICCARTHY. 1o pole and channel-bar, substantially as de- Vitnesses:

scribed. JOHN L. JACKSON,

3. In e roof, the combination, with a longi- RALPH VANDYKE. 

